<template>
    <div>
        <div id="slider" class="mui-slider ">
            <div id="sliderSegmentedControl" class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
                <div class="mui-scroll">
                    <a :class="[`mui-control-item`,item.id==0?'mui-active':'']" v-for="item in cates" :key="item.id" @tap="getPhotoListByCateId(item.id)">
                        {{item.title}}
                    </a>
                </div>
            </div>
		</div>

        <ul class="photo-list">
            <router-link :to="`/home/photoInfo/${item.id}`" v-for="item in list" :key="item.id" tag="li">
                <img v-lazy="item.img_url">
                <div class="info">
                    <h1 class="info-title">{{ item.title }}</h1>
                    <div class="info-body">{{ item.zhaiyao }}</div>
                </div>
            </router-link>

        </ul>
    </div>
</template>
           
<script>
import mui from "../../lib/mui/js/mui.js"

export default{
    data(){
        return{
            cates:[],
            list:[]
        }
    },
    mounted(){
        mui('.mui-scroll-wrapper').scroll({
            deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
        });
    },
    methods:{
		getAllCategory(){
			this.$http.get("api/getimgcategory").then(result=>{
				if(result.body.status==0){
					result.body.message.unshift({title:"全部", id:0 })
					this.cates=result.body.message
				}
			})
        },
        getPhotoListByCateId(id){
            // 根据 分类Id，获取图片列表
            this.$http.get("api/getimages/" + id).then(result => {
                if (result.body.status === 0) {
                this.list = result.body.message;
                console.log(this.list)
                }
            });
        }
	},
	created(){
        this.getAllCategory();
        // 默认进入页面，就主动请求 所有图片列表的数据
        this.getPhotoListByCateId(0)
	}
             
}
</script>
<style lang="scss" scoped>
* { touch-action: pan-y; } 
.photo-list{
    list-style: none;
    background-color: #fff;
    padding: 10px;
    padding-bottom: 0px;
    margin:0;
    li{
        background-color: #ccc;
        margin-bottom: 10px;
        box-shadow: 0 0 9px #888;
        position: relative;
        img{
            width: 100%;
            vertical-align: middle;
            }
        img[lazy=loading] {
        width: 100px;
        height: 100px;
        margin: 50% 50%;
        transform: translate(-50%,-50%)
        }  
        .info{
            color:#fff;
            padding-left: 5px;
            background-color: rgba(0,0,0,.4);
            position:absolute;
            bottom:10px;
            max-height: 80px;
            .info-title {
                font-size: 14px;
                margin-top: 0;
                line-height: 22px;
                height: 22px;
                margin-bottom: 0px;
                padding-top: 5px;
            }
            .info-body {
                font-size: 13px;

            }
        }
    }
    

}   
    
</style>